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[Linear Algebra] Subspaces and the basis for a subspace 01 ๋ณธ๋ฌธ

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[Linear Algebra] Subspaces and the basis for a subspace 01

yeon42 2022. 2. 7. 22:58
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Reference

 

 

Linear subspaces

 

 

 Subspace์— ๋Œ€ํ•œ ๊ฐœ๋…์„ ์‚ดํŽด๋ณด๊ณ , V๋ฅผ ๊ทธ subspace์˜ ๋ถ€๋ถ„์ง‘ํ•ฉ์ด๋ผ๊ณ  ํ•˜์ž.

 

 

Subspace์˜ ์ •์˜์— ๋Œ€ํ•œ ์„ค๋ช…์ด๋‹ค. 3๊ฐ€์ง€ ์กฐ๊ฑด์„ ๋งŒ์กฑํ•˜๋ฉด ๋˜๋Š”๋ฐ

1) 0๋ฒกํ„ฐ๋ฅผ ํฌํ•จํ•˜๊ณ ,

2) ๊ณฑ์…ˆ ์—ฐ์‚ฐ ๋Œ€ํ•ด ๋‹ซํ˜€์žˆ๊ณ ,

3) ๋ง์…ˆ ์—ฐ์‚ฐ์— ๋Œ€ํ•ด ๋‹ซํ˜€์žˆ๋‹ค.

 

'๋‹ซํ˜€์žˆ๋‹ค' ๋ผ๋Š” ๊ฒƒ์€ ์–ด๋–ค ์ง‘ํ•ฉ ๋‚ด์—์„œ ์—ฐ์‚ฐ์„ ์ˆ˜ํ–‰ํ•ด๋„ ๋‹ค์‹œ ๊ทธ ์ง‘ํ•ฉ์— ์†ํ•œ๋‹ค๋Š” ๊ฒƒ์„ ์˜๋ฏธํ•œ๋‹ค.

 

 

 

 

 

 

์ด ์˜ˆ์ œ๋Š” ํ•ด๋‹น ์ง์„  ์œ„์˜ ์ž„์˜์˜ ๋ฒกํ„ฐ์™€ ๋‹ค๋ฅธ ๋ฒกํ„ฐ์˜ ํ•ฉ, ๊ทธ๋ฆฌ๊ณ  ์Šค์นผ๋ผ๊ฐ€ ๊ณฑํ•ด์ง„ ์–ด๋– ํ•œ ๋ฒกํ„ฐ๋Š” ์ง์„  ์œ„์˜ ๋˜ ๋‹ค๋ฅธ ๋ฒกํ„ฐ๊ฐ€ ๋  ์ˆ˜ ์žˆ์Œ์„ ๋ณด์—ฌ์ค€๋‹ค.

 

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